FLETCHER DAVID E,GRAICHEN BRIAN M,MILLER JAMES H,HAMPTON KEITH
申请号：
IN201717033386
公开号：
IN201717033386A
申请日:
2017.09.20
申请国别(地区):
IN
年份:
2017
代理人:
摘要：
Devices for producing vacuum using the Venturi effect and systems such as internal combustion engine systems including the same are disclosed. The devices include a housing defining a suction chamber a motive passageway converging toward the suction chamber and in fluid communication therewith a discharge passageway diverging away from the suction chamber and in fluid communication therewith and a suction passageway in fluid communication with the suction chamber. Within the suction chamber a motive exit of the motive passageway is generally aligned with and spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap and the suction passageway enters the suction chamber at a position that generates about a 180 degree change in the direction of suction flow from the suction passageway to the discharge passageway.
